this yarnell fire is the third deadliest in u.s. history. bill: we heard from the arizona governor jan brewer. nor john mccain says this is a reminder of the grave risks our firefighters take every dayton our behalf and in communities across the nation. their sacrifice will never be forgotten. martha: the deadly wildfire fueled by a record-breaking heat wave blistering the southwest. let's go to maria molina. she is live in the fox extream weather center. those numbers are incredible. >> i want to focus in on yarnell, arizona. this area was impacted throughout the morning hours about basically how they had the wildfire that killed those 19 firefighters. it's believed that that fire actually started by lightning. and we do have a chance to consider to see more thunderstorms in this i are area throughout this entire week. there is a 20% chance of a thunderstorm. anymore lightning from these storms any any strong wind the storms can produce -- i believe the fire is zero% contained. temperatures remaining in the 90s. it's not just arizona we are